baber/WOPTO huggingface dataset:
Patent GB-437718-A (GB)
Title: Improvements in and relating to the production of hydraulic binding materials
IPC: C04B28/26
Filed: 1934-01-29
Abstract: Hydraulic binding-materials are made by mixing, as by grinding, solid watersoluble silicates with materials of a schist-like nature which on subdivision split into flake form.  The said materials may be shale, argillite, clay stones, prophyroides, streaked porphyre, porphyre schist, crystalline schist, micacious schist, talc schist, chlorite schist, horn blend schist, serpentine schist, or gneiss stone.  To the mixture may be added acids, e.g. humic or phthalic acid or anhydride (about 1 per cent), blast-furnace or iron cement clinkers (up to 10 per cent), lead silicate, and quartz.  In an example "a starting material" free from or poor in lime is ground in a ball mill with 15 per cent of waterglass having a 1 : 4 Na2O:SiO2 ratio and 1 per cent of humic acid in the form of pulverized brown coal, until only 5 per cent of the mixture is retained on a sieve having 5000 meshes per sq. cm.  The hydraulic binding material so obtained is then mixed with quartz in a 1 : 3 proportion to give a water-tight and acid-resistant constructional material.
Patent GB-1092581-A (GB)
Title: Improvements in and relating to filament for electron gun
IPC: H01J37/07
Filed: 1966-01-24
Abstract: 1,092,581. Thermionic cathode constructions; electron beam apparatus. D. SCIAKY. Jan. 24, 1966, No. 3071/66. Heading H1D. The directly-heated cathode of an electron gun is formed from a metal strip shaped to provide two spaced clamping portions and a central hollow-cylindrical section closed at one end and connected with the clamping portions by divergent portions of the strip. The closed end of the cylindrical section emits an electron beam of generally circular crosssection. The cathode is clamped between supply leads 1, 2 and bars 4, 5 for easy replacement. The strip may be of Ta or W, and the cathode may be used in electron beam welding apparatus similar to that described in Specification 1,009,987.
Patent GB-456053-A (GB)
Title: Improvements in and relating to the manufacture of soft or hard rubber coatings
IPC: C08J5/02
Filed: 1935-01-30
Abstract: An indiarubber coating deposited from an aqueous dispersion on any desired surface is treated in a wet condition with agglomerating substances to give it a marbled or granular surface. The agglomerant may be applied in drops or as a powder.  An additional smooth surface may be applied to the roughened surface. The rubber coating may be made from two or three multicolour dispersions.  The pH value of the agglomerant may be greater than that of the dispersion used.  The surface-modifying agents referred to are acetone, alcohol, vinegar, and also bronze, metal or quartz powder.
Patent GB-507936-A (GB)
Title: Improvements relating to rotary or oscillating furnaces
IPC: F27B3/00
Filed: 1938-02-01
Abstract: 507,936. Rotary and oscillating furnaces. STEIN & ATKINSON, Ltd., and BOOTH, T. A. Feb. 1, 1938, No. 3172. [Class 51 (ii)] Where fixed tuyeres might be damaged in operation by coming below the surface of the melt during rocking or oscillation of the furnace, refractory plugs 14 are put in the holes 13 to be replaced by tuyeres, as at 15, at a later stage when air is to be introduced below the surface of the melt.
Patent GB-775563-A (GB)
Title: Improvements in and relating to speed-sensitive electric regulators
Inventor: SIMMS TERENCE EDWIN
IPC: H02P7/06
Filed: 1954-02-03
Abstract: 775,563. Electric measuring systems. ENGLISH ELECTRIC CO., Ltd. May 3, 1955 [Feb. 3, 1954], No. 3184/54. Class 40 (1). [Also in Groups XXXV and XXXVII] The resistance of a carbon pile in an electric speed regulator for an electric motor is made speed-responsive by mounting the regulator for rotation with the machine and varying the compression of the pile by centrifugal means. The regulator comprises a housing 11 provided with a threaded extension 24 for mounting on the motor shaft. The housing contains a carbon pile 10 mounted between an adjustable screw 17 and a contact pad 23 fixed to a diaphragm spring 21, the pile being connected by slip rings 32 to an external circuit. A doubleended lever 25 pivoted at 26 has its end 25a bearing against pad 23 and its weighted end 25b coacting with an adjustable biasing compression spring 28. Rotation of the regulator causes an anticlockwise turning of the lever and a tendency for the compressive force imposed on the pile by spring 28 to be overcome as the speed increases, so that the pile resistance increases. In modifications (not shown), a second centrifugally-operated lever opposes the action of the first, and part of the pile may be disposed transversely to the axis of rotation so that the pile compression is varied by inertia forces set up when the regulator accelerates or decelerates.
Patent GB-678275-A (GB)
Title: Improvements in or relating to friction driving rollers for bicycle and other vehicle wheels
IPC: B62M7/10
Filed: 1949-02-04
Abstract: 678,275. Friction wheels. PIATTI, V. Feb. 4, 1949 [Feb. 4, 1948], No. 3204/49. Class 80 (i). A friction driving roller of hard wear resistant material comprises members 3 mounted on a disc 2 on a hub 1. In modifications the members 3 may be mounted directly on the hub 1 or by means of two discs. The members 3 may have a convex or concave surface and various axial shapes. Specifications 511,544 and 676,767, [both in Group XXXI], are referred to.
Patent GB-1184975-A (GB)
Title: Excavator
IPC: E21C27/30
Filed: 1968-01-22
Abstract: 1,184,975. Shovel loaders. SALZGITTER MASCHINEN A.G. 22 Jan., 1968 .[29 April, 1967], 'No. 3286/68. Heading E1F. The length of a shovel-carrying, two part, vertically swingable, telescopic boom 7, 8 pivotally mounted at 10 on a self propelled, tracked vehicle can be varied by a pistoncylinder motor that is so mounted within the boom that the closed end of the cylinder 9 of the motor is coupled to the vehicle about the pivot axis 10 of the boom on the vehicle and the piston rod 11 of the motor is coupled to the shovel-carrying part 8 of the boom said part 8 being slidable within the other part 7 of the boom. The parts 7, 8 are of rectangular cross section, the shovel is provided with a projection 18 for bearing against the ground to absorb reaction forces on the shovel when the shovel is being filled and the boom-swinging motor 14 is resiliently mounted on the chassis 2 of the vehicle.
Patent GB-1017130-A (GB)
Title: Improvements in or relating to projectors with cut-off beams
IPC: F21V11/00
Filed: 1962-12-19
Abstract: 1,017,130. Vehicle headlamps. P. CIBIE. Dec. 19, 1962 [Feb. 13, 1962; April 7, 1962], No. 3339/65. Divided out of 1,015,365. Heading F4R. [Also in Division H1] A dipped beam headlamp for vehicles or other light projector comprises a reflector formed of a parabola of revolution about an axis coincident with a rectilinear generatrix of the light source and having a focus in the vicinity of the rear part of the source and a masking cup having marginal edges in a cut-off surface and a cap with a semi-circular edge traced by the focus during the generating process. In one form for producing a convergent beam, the reflector 29 is generated by rotating a parabolic sector about an axis O 2 O 3  and having a focus F4 above the rear part of a cylindrical light filament 30, the lower edge of the surface of which lies on the axis O 2 O 3 . The cup consists of a semicylindrical part 31 below the filament and closed at the rear by a hemispherical cap 32, the rim lying on the circle traced by the focus F4. In a modification for producing a divergent beam, the focus is below the filament, the cup being above the filament with the cap arranged at the front end. The system can be arranged within a sealed beam type of lamp.
Patent GB-1202801-A (GB)
Title: Method for producing alkylated compounds
Inventor: BORST WILLIAM BEVERIDGE
IPC: C07C2/62
Filed: 1968-01-23
Abstract: 1,202,801. Alkylating isoparaffins. UNIVERSAL OIL PRODUCTS CO. 23 Jan., 1968 [24 Jan., 1967], No. 3397/68. Heading C5E. A mixed alkylation feed 10 comprising isoparaffinic and olefinic hydrocarbons is introduced as a plurality (2 or more) of longitudinally spaced streams into elongated reaction zone 11, where they react in the presence of a liquid catalyst (particularly HF). Reaction zone 11 contains internal cooling means (not shown) supplied by cooling pipe 12 with exit 13, and the rate of passage of feed through each inlet port is adjusted so that the heat evolved in the reaction is dissipated by the cooling means prior to the reaction mixture reaching the next succeeding downstream inlet. Effluent 15 is separated in zone 16 to yield alkylate 17 and recycle catalyst 14 which, together with makeup catalyst 18 as desired, is pumped by 19 back to zone 11 without intermediate cooling. A pressure drop of at least 0À136 atmospheres is maintained across zone 11, and preferably also across separation zone 16. The process is particularly suitable for alkylating isobutane with butylenes, but isohexane as the isoparaffin, and olefins from propylene to heptene are also specifically mentioned. Alternative catalysts to HF are mixtures of sulphuric and phosphoric acids, mixtures of hydrochloric acid and certain complexes of AlCl 3  and BF 3 , or sulphuric acid alone.
Patent GB-1317140-A (GB)
Title: Spetrally sensitized silver halide photographic emulsions
IPC: G03C1/12
Filed: 1970-05-15
Abstract: 1317140 Photographic silver halide emulsions FUJI PHOTO FILM CO Ltd 15 May 1970 [17 May 1969] 3503/73 Divided out of 1316493 Heading G2C Photographic silver halide emulsions having increased sensitivity in the specific adsorption wavelength of the silver halide and which also have an enlarged spectral adsorption wavelength region, have a mean silver halide grain size smaller than 0À18 micron or have at least 95% of the silver halide grains smaller than 0À2 micron in diameter and contain at least one sensitizing dye of the formula:- wherein Q is O, S or N(R<SP>4</SP>) (where R<SP>4</SP> is alkyl, substituted alkyl, aryl or allyl); Z<SP>1</SP> and Z<SP>2</SP> each complete a 5- or 6-membered heterocyclic ring (e.g. oxazole, benzoxazole, thiazole, benzthiazole, naphthothiazole, quinoline, tetrazole); R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> are each alkyl or substituted alkyl; L<SP>1</SP>, L<SP>2</SP> and L<SP>3</SP> are each CH or C(R<SP>5</SP>) (where R<SP>5</SP> is alkyl, alkoxy, aryl or substituted aryl); R<SP>1</SP> and L<SP>1</SP> or R<SP>3</SP> and L<SP>3</SP> may be joined through a polymethylene chain; X is an anion; m is 0 or 1; and n is 0 or 1, the dye being an intromolecular salt when n is 0.
Patent GB-1017643-A (GB)
Title: Protection of vehicles from effects of low temperatures
Inventor: BRIMELOW FRANK SANDERSON
IPC: B60H1/03
Filed: 1963-01-29
Abstract: 1,017,643. Vehicle heating systems. STALYBRIDGE, HYDE, MOSSLEY & DUKINFIELD TRANSPORT & ELECTRICITY BOARD. April 22, 1964 [Jan. 29, 1963], No. 3584/63. Heading F4U. A motor vehicle has electrical heating means for the engine coolant of a liquid-cooled engine and electrical heating means with associated fan and ducting to blow hot air into the interior of the vehicle and means whereby both heating means can be simultaneously connected to a common external supply of electric power. As shown, a double-deck omnibus may have the interior heating means mounted behind the rear seat of the upper deck. A fan B blows air through a bank of electric heaters C, and thence through ducting D which distributes the hot air via a grille under the rear seat of the upper deck and a grille in the ceiling of the lower deck. A single-deck omnibus may have the heating means situated under a seat near the centre. The ducting is preferably made from layers of resin bonded glass fibre. A power box, equipped with an overload trip unit and fuses is protected by an external weatherproof hinged cover flush with the side of the vehicle.
Patent GB-545368-A (GB)
Title: An improved fire extinguisher
IPC: A62C35/60
Filed: 1941-03-17
Abstract: 545,368. Fire-extinguishing. SMITH, E., and CRABTREE, N. March 17, 1941, No. 3606. [Class 47 (ii)] An automatically-acting fire extinguisher comprises a container a having at its upper end a gland b provided with an axial passage b' in communication with a dip pipe d, the upper end of this passage being normally closed, by a valve e' carried by a screwed plug e enclosed within a removable cap f. At its lower end the container a is fitted with a discharge member i having an axial passage i<SP>1</SP> enlarged at its lower end i<SP>2</SP> to form a seat of a valve k, the stem k' of which is normally supported by a fusible strut m held in place by a set screw n. When, by a pre-determined rise of temperature, this strut collapses, the valve k opens, and liquid fire-extinguishing medium is expelled from the container a into a chamber o surrounding the valve and thence through radial apertures j in the wall of the member i. The liquid medium is preferably carbon tetrachloride charged with carbon dioxide gas, which is introduced under pressure through the filling gland b when the valve e<SP>2</SP> is raised.
Patent GB-1490246-A (GB)
Title: Nestable beakers
IPC: B65D1/26
Filed: 1975-01-28
Abstract: 1490246 Containers K LOHWASSER 28 Jan 1975 [28 Jan 1974] 3608/75 Heading A4A [Also in Division B8] A nestable beaker-shaped container for yoghourt, jam etc. comprises a shoulder 3 formed between an upper portion 1a of cylindrical or other constant cross-sectional form and a lower portion 1b of upwardly-divergent form, the shoulder, or at least the lowermost portion or portions thereof, being spaced from the rim 4 by a distance of between 35% to 45% of the total container height and being adapted to seat on the rim of an identical container when nested therewith to maintain the printed outer surface of the upper portion la above the rim. This avoids smudging the printing and transfer of the printing inks to the inner surfaces of the nested containers. The containers, instead of being of circular cross-section as shown, may be of rectangular cross-section or of circular cross-section with a flattened side, Fig. 3 and 4 (not shown). The shoulder may be parallel to the rim as shown or extend in a sinusoidal or toothed manner around the container circumference. A step or a series of beads, Figs. 6 and 7 (not shown), may be provided below the shoulder to frictionally engage in the mouth of the adjacent container. Circumferential, axial, or inclined strengthening ribs may be provided on the lower container portion.
Patent GB-451185-A (GB)
Title: Improvements in the construction of reinforced concrete floors
IPC: E04B5/23
Filed: 1935-02-04
Abstract: 451,185. Floors ; girders ; casting in situ. TRUSSED CONCRETE STEEL CO., Ltd., and DAWSON, S. E., Thames House, Millbank, London. Feb. 4, 1935, No. 3641. [Classes 20 (ii) and 20 (iv)] Reinforced-concrete floors comprise concrete cast to arched or inverted channel form between pre-cast beams a which are only of sufficient strength to carry their own weight and that of the floor concrete without undue deflection, such beams being of inverted T- cross-section and having surfaces c diverging outwardly and downwardly towards the upper side of the bottom flanges d so as to leave a narrow landing e along the outer upper portion of each flange for the support of hollow filler blocks, arched tiles or temporary shuttering. Each beam is provided with reinforcement g in its flange portion, and reinforcement h, i in its web. In the construction shown in Fig. 1, hollow filler blocks f are supported on the landings e and the concrete may be flush with the top surface of the beams or extend thereover; in the latter case, the top surfaces of the filler blocks may coincide with, or be above the level of, the top surfaces of the beams. The concrete j may, alternatively, be cast on temporary metal shuttering f<2>, Fig. 3, having lateral fingers f and adapted to be flexed to the position shown in dotted lines to permit withdrawal. In order to assist the transmission of the compressive stresses set up in the upper part of the beams a into the body of the concrete j, the web of each beam may be provided with recesses k, Fig. 4, which may be staggered and tapered.
Patent GB-196423-A (GB)
Title: Improvements relating to trap nests for poultry and the like
IPC: A01K31/16
Filed: 1922-11-09
Abstract: 196,423. Lloyd, B. Nov. 9, 1922. Trap-nests.-The slidable door 1 is movable in a frame composed of two vertical members 2 and a transverse member 3, and is normally held in a raised position by a catch 4. The upper extremities 5 of the catch are pivoted in eyes on the back of the transverse member 3 and its central portion 6 extends forward in a horizontal direction below the transverse member and the lower edge of the door 1, being curved upwardly at its end. The door is released by the fowl engaging a hanger 7, comprising two downwardly extending wire limbs that are pivoted on the catch 4 and have an upwardly extending part 8 of inverted U-shape. As the fowl presses back the hanger the part 8 engages the transverse member 3 causing the catch 4 to move on its pivots, thus freeing the door. A hinged catch 10 may be provided to retain the door in its raised position. The door is formed with apertures 9 that act as air vents and also facilitate its opening. The frame 2 may be hingedly connected to an outer fixed frame.
Patent GB-317534-A (GB)
Title: Improvements relating to rubber valves, diaphragms, washers and the like
IPC: F16J3/02
Filed: 1928-10-30
Abstract: 317,534. Hughes, H. W. Oct. 30, 1928. Diaphragm pumps. - Indiarubber valves, diaphragms, washers and the like are provided with an interiorly disposed insert b of pure or high grade flexible rubber and an impregnated cord reinforcement c embedded in the material adjacent the flexible insert. The Figure shows a dished diaphragm for use in a diaphragm pump. The flexible insert b, which may be in one or more layers, is slightly less in diameter than the main body a.
Patent GB-1023103-A (GB)
Title: Improved draw-twisting apparatus
IPC: D01H1/30
Filed: 1964-01-29
Abstract: In a method of draw-twisting filamentary yarns, in which the yarn after being fed to a drawing-device is twisted on a rotating spindle by a ring and traveller, the tension of the yarn is automatically controlled by adjusting the speed of rotation of the spindle.  The tension may be measured and compared with the required value which may be continuously varying, or the tension is not directly measured but the rotational speed of the spindle is adjusted to speeds which, from previous experiment it is known will result in the required tension values.  The spindle speed may be adjusted to decrease, e.g. at decreasing rates, at the initial part of a wind, to increase during the second part, to remain constant over part of the wind, or to gradually decrease to a minimum.  The changes in speed may have a linear or other relationship to the winding-time.  (Figs. 5c, 6c, 7, 8, not shown).  The yarns each of which consists of one or more filaments, is stretched by passing over rollers rotating at different speeds, and are wound on ring-spindles arranged on groups of four driven by a common tape from a shaft driven by a main motor.  A signal from a tachometer driven by the same shaft, is compared with one from means which senses a program tape or card; if the signals differ, a command is sent to a servomotor to adjust the speed of the main motor (Fig. 2 not shown).  The card has a rack for advancing it during a wind, and the program is determined by previous experiment and is represented by ridges in horizontal columns, the spindle-speed appropriate to a particular stage of the wind being determined by the number of ridges in vertical lines.  The servomotor may be controlled directly by signals from the card, (Fig. 3 not shown), one of the ridges controlling the starting and stopping of the spindles.  In another form, the servomotor is controlled by cam lugs adjustably spaced on a continuously-rotating disc (Fig. 9, not shown).  The tension of the yarn may be sensed at one station to give a signal which is compared with a voltage determined by the setting of a hand-knob to correspond with a desired tension (Fig. 4, not shown); alternatively, the device may be switched over to one where the signals are compared with those from program-controlled means. If the signals differ, a servomotor changes a variable transmission of which the input side is driven at constant speed.
Patent GB-251373-A (GB)
Title: Improvements in and relating to the manufacture of dentures, and the like
IPC: A61K6/898
Filed: 1925-02-11
Abstract: 251,373. Burlin, A. L., Leicester, S., and Holman, L. B. Feb. 11, 1925. Teeth, artificial; palates, artificial.-Dentures, artificial palates and the like are moulded from water-insoluble organic esters or ethers of cellulose such as the acetate. The compositions employed contain also colloiding agents or plasticisers such as benzyl alcohol, benzoin, benzil, or triacetin, and pigments such as white titanium pigments and vermilion. Solvents to be volatilized from the mass may also be employed. The material may be prepared in plate or sheet form, or as pre-formed blanks, or in pulverulent form. In forming a denture the teeth embedded in wax are inserted with the base upward in plaster in one half of a flask, the wax removed as usual, the two halves of the flask heated, and the cellulose composition inserted. The two halves of the flask are then brought together, heated to 160‹ C. in a press under direct dry heat, and pressure gradually applied until the flask is completely closed. The flask is then removed with the press from the heater, placed in cold water and the denture removed and finished in the usual manner. For repair work part of the denture is cut away and a new tooth inserted in place on modelling wax, and the plate so prepared is invested in plaster, the wax removed and replaced by the cellulose composition, and the whole treated in a press as above described. Alternatively a new portion may be secured by the employment of volatile solvents.
Patent GB-905481-A (GB)
Title: Improvements in infrared heating apparatus
IPC: F23D14/14
Filed: 1960-02-03
Abstract: 905,481. Radiants ; radiation burners. BUTTNER, H., and BUTTNER, K., [trading as STETTNER & CO.]. Feb. 3, 1960 [Feb. 4, 1959], No. 3907/60. Classes 75 (1) and 126. In a surface combustion heater, comprising a perforated ceramic plate 5, a grid consisting of flat ceramic bars 6<SP>111</SP> in louvre-like or cellular (not shown) arrangement is mounted in front of the plate 5. Preferably each bar 6<SP>111</SP> is tapered along its lower edge. A coating of silver, gold or platinum may be applied to the side faces of the bars to increase their reflective qualities.
Patent GB-1008370-A (GB)
Title: Improvements relating to code converters
Inventor: TYZACK DONALD ERNEST
IPC: H03M7/12
Filed: 1961-02-02
Abstract: 1,008,370. Selective signalling systems. ELECTRIC & MUSICAL INDUSTRIES Ltd. Jan. 25, 1962 [Feb. 2, 1961], No. 3915/61. Heading G4H. Binary-coded decimal data is supplied over four input channels on " mark " and " space " leads, for example from peckers 1-4 of a punched-tape reader, and in the position of switch 5 shown the input data is transferred to output channels 6, 7, 10, 13. In the other position of switch 5, the output channels carry the complement to nine of the input data, this being achieved by complementing the 2‹ digit, transferring the 2<SP>1</SP> digit, complementing the 2<SP>2</SP> digit if the 2<SP>1</SP> digit is a " 1 " and complementing the 2<SP>3</SP> digit if the 21 and 2<SP>2</SP> digits are both " 0." The converter enables two parts of a workpiece, one part being the mirror image of the other, to be cut by a machine tool using the same tape programme.